Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2006-10-13
2010-06-29
Zemel, Irina S (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S418000, C525S474000, C525S479000, C525S902000, C525S903000, C525S191000
Reexamination Certificate
active
07745536
ABSTRACT:
The present invention relates to an acryl-silicon rubber complex polymer which has a seed-core-shell structure wherein vinyl monomer and hydrophilic monomer are cross-linked on the seed; the acryl-silicon complex IPN core having an IPN (interpenetrating network) structure formed by radical polymerization of acryl monomer and hydrosilyation of silicon rubber in which silicon rubber particles are dispersed by being cross-linked to acryl rubber, in a continuous phase, is formed on the seed; and a shell prepared by graft-polymerization of C1-C4alkyl methacrylate to the acryl-silicon complex IPN core is formed on the core, and a method of preparation and use of the same, thereby having excellent impact resistance, weatherability and gloss, so that it can be effectively used as an impact modifier for vinyl chloride resin.
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Ahn Jeong-heon
Lee Hye-kyong
Lee Ji-min
Lee Kwang-jin
Seo Boo-ho
Cantor & Colburn LLP
Lenihan Jeffrey
LG Chem Ltd.
Zemel Irina S
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